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Author Topic: 1500 RPM Studder  (Read 2255 times)
foureyedstang
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« Reply #60 on: May 22, 2007, 08:35:43 AM »

u should try replacing the pickup coil and thr mapsensor.
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foureyedstang
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« Reply #61 on: May 22, 2007, 08:38:16 AM »

map sensor could also cause hesitation
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Bwhitty799
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« Reply #62 on: December 27, 2007, 08:56:38 PM »

Still having this problem. Changed about everything know to man that would cause these problems but they are still here.
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Brandon
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David Claflin
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« Reply #63 on: December 31, 2007, 04:00:18 AM »

Did you ever try a vacuum gage on it to see what that shows?? I say that because it sounds like a leak, I know you've checked but some are hard to find but a vacuum gage will show it.
http://sbftech.com/index.php/topic,3020.0.html
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« Reply #64 on: December 31, 2007, 09:33:07 AM »

I did a long time ago and it was fine if I recall correctly.  But I will give her another go and see what happens.
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Brandon
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Bwhitty799
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« Reply #65 on: February 04, 2008, 06:42:24 PM »

Checked vacuum the other night and it is fine.  Could the injectors be bad in this.  They are not very old but there is not much more that I can think of.
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Brandon
1990 GT
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quake101
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« Reply #66 on: February 06, 2008, 10:51:25 AM »

Checked vacuum the other night and it is fine.  Could the injectors be bad in this.  They are not very old but there is not much more that I can think of.

I guess it's possible, I had 1 bad injector in my stang when I put 24# injectors in it, it was running very very rich and was "bucking" at low RPMs. After I replaced the bad injector (and reset the computer) things went back to normal.
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Bwhitty799
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« Reply #67 on: April 15, 2008, 08:40:12 AM »

Never changed injectors. But last night I was listening to the car, and heard psst,psst coming somewhere around the intake.  I used another can of brake cleaner and no RPM rise.  This a sign of a bad injector???
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Brandon
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« Reply #68 on: April 18, 2008, 09:15:08 AM »

So changing the injector fixed this?
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David Claflin
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« Reply #69 on: April 18, 2008, 09:33:53 AM »

So changing the injector fixed this?
That should show up in the codes or cylinder balance test
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« Reply #70 on: April 18, 2008, 10:47:18 AM »

cylinder balance test? Huh
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Bwhitty799
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« Reply #71 on: April 18, 2008, 09:12:25 PM »

Yes injector did fix this.
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Brandon
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« Reply #72 on: April 19, 2008, 02:35:21 AM »

cylinder balance test? Huh
http://sbftech.com/index.php/topic,2471.0.html
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If an American is to amount to anything he must rely upon himself, and not upon the State; he must take pride in his work, instead of sitting idle to envy the luck of others. He must face life with resolute courage, win victory if he can, and accept defeat if he must, without seeking to place on his fellow man a responsibility which isn't theirs-TR
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